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[Mark]

Hello,

Can anyone help me with code so that my program will only work on one computer when they first run the program as i dont want mines to be re-sold.

[Zulf]

What do you mean? :S

[Mark]

I am wanting my program so when people purchase it they cant then use it on another computer.?

[Zulf]

3 Solutions:

1) Make the program check for your IP, if it doesn't match make it lock the program up.
2) Make the program require a username or password, check YouTube for a login system of some type if you don't know how to do it by yourself.
3) Make it require a license/key.

[mandai]

I don't think it would be a smart idea to lock a license of your program to a particular IP.
The other 2 methods are fine though.

[NoWayIn]

3 Solutions:

1) Make the program check for your IP, if it doesn't match make it lock the program up.
2) Make the program require a username or password, check YouTube for a login system of some type if you don't know how to do it by yourself.
3) Make it require a license/key.

well locking onto the IP as mandai will not be smart, what if their IP change everytime they restart their Modem/Router?

Using username and password is okay but then they could still share the information.
and as for a key, unless the key is created base on the computer's ID it will be useless =\

[Zulf]

Eehh. Well I don't really know much, I just started using Visual Studio a couple days ago. :/

[Lewis]

To use a key they must be a way for when that key is used it cant be used again - Use Php script on a website.

[NoWayIn]

He could use MySQL to store the serial codes, if the serial code is in the database it can not be use again.

[GoodGuy17]

Or just use CodenStuff's Serial Manager lol